Korean Journal of Head & Neck Oncology (대한두경부종양학회지)

The Korean Society for Head and Neck Oncology (대한두경부종양학회)
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Low Grade Myofibroblastic Sarcoma of the Sternocleidomastoid Muscle

흉쇄유돌근에서 기인한 Low-Grade Myofibroblastic Sarcoma 1예

  • Sim, Nam Suk (Department of Otorhinolaryngology, Yonsei University College of Medicine) ;
  • Hong, Hyun Jun (Department of Otorhinolaryngology, Yonsei University College of Medicine) ;
  • Song, Kee-Jae (Department of Otorhinolaryngology, Yonsei University College of Medicine) ;
  • Choi, Sung-Eun (Department of Pathology, Yonsei University College of Medicine) ;
  • Suh, Yun Suk (Department of Otorhinolaryngology, Yonsei University College of Medicine) ;
  • Lee, Eun Jung (Department of Otorhinolaryngology, Yonsei University College of Medicine)
  • 심남석 (연세대학교 의과대학 이비인후과학교실) ;
  • 홍현준 (연세대학교 의과대학 이비인후과학교실) ;
  • 송기재 (연세대학교 의과대학 이비인후과학교실) ;
  • 최성은 (연세대학교 의과대학 병리학교실) ;
  • 서연석 (연세대학교 의과대학 이비인후과학교실) ;
  • 이은정 (연세대학교 의과대학 이비인후과학교실)
  • Received : 2013.11.03
  • Accepted : 2014.03.14
  • Published : 2014.05.31
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Abstract

Low-grade myofibroblastic sarcoma is a rare disorder of malignant soft tissue tumor and is usually occurred various regions that often manifests in the head and neck region. The most common clinical presentation of this entity is non-tender cervical lymphadenopathy. This disease usually presents high possibility of local recurrence and low possibility of distant metastasis. We report a rare case of low-grade myofibroblastic sarcoma occurring in the sternocleidomastoid muscle and invading to the mastoid tip. A 56-year-old male visited the clinic with a complaint of slowly growing postauricular mass for 6 months. Mass originating from sternomastoid muscle and invasion to mastoid tip was observed by imaging studies. Surgical complete excision with simple mastoidectomy was performed via modified facelift approach. The histopathologic findings revealed malignant spindle cell tumor with positive staining with smooth muscle actin. The patient has no recurrence for 2years without any complication.

Keywords

References

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